Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.epsr.2020.106407 http://hdl.handle.net/11449/200432 |
Resumo: | Considering the high penetration of distributed generators in low-voltage grids, establishing a coordinated operation of their grid-tied inverters has become imperative to move towards the implementation of smart grids. Yet, knowing that mitigation of power quality issues such as reactive power, current unbalance and harmonics is of importance within such a context, this work proposes a master/slave control approach, which uses a communication means of low-bandwidth, to flexibly coordinate four-leg inverters dispersed in three-phase four-wire networks. Their coordination is attained by means of a current-based approach, allowing the sharing of active, reactive, harmonic and unbalance currents drawn by loads. The control strategy also regulates the power flow at the point of common coupling of the low-voltage network, while proportionally steering inverters according to their nominal capabilities. In addition to the offering of selective harmonic mitigation, the control approach provides distributed and decoupled unbalance compensation, in partial or total portion, based on concepts from the Conservative Power Theory. Consequently, extraction of sequence components or implementation of virtual impedance control loops are not required. The proposed strategy is evaluated based on multiple simulation results, considering the CIGRE's European low-voltage distribution benchmark, including six distributed inverters, as well as linear and nonlinear loads. |
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Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networksDistributed invertersHarmonic compensationPower qualityPower sharingThree-phase four-wireConsidering the high penetration of distributed generators in low-voltage grids, establishing a coordinated operation of their grid-tied inverters has become imperative to move towards the implementation of smart grids. Yet, knowing that mitigation of power quality issues such as reactive power, current unbalance and harmonics is of importance within such a context, this work proposes a master/slave control approach, which uses a communication means of low-bandwidth, to flexibly coordinate four-leg inverters dispersed in three-phase four-wire networks. Their coordination is attained by means of a current-based approach, allowing the sharing of active, reactive, harmonic and unbalance currents drawn by loads. The control strategy also regulates the power flow at the point of common coupling of the low-voltage network, while proportionally steering inverters according to their nominal capabilities. In addition to the offering of selective harmonic mitigation, the control approach provides distributed and decoupled unbalance compensation, in partial or total portion, based on concepts from the Conservative Power Theory. Consequently, extraction of sequence components or implementation of virtual impedance control loops are not required. The proposed strategy is evaluated based on multiple simulation results, considering the CIGRE's European low-voltage distribution benchmark, including six distributed inverters, as well as linear and nonlinear loads.Norges ForskningsrådGroup of Automation and Integrated Systems Sao Paulo State University (UNESP), Av. Três de Março 511, 18087-180 SorocabaDepartment of Electric Power Engineering Norwegian University of Science & Technology (NTNU), O.S. Bragstads plass 2Graduate Program in Electrical Engineering Federal University of Minas Gerais (UFMG), Antônio Carlos 6627Group of Automation and Integrated Systems Sao Paulo State University (UNESP), Av. Três de Março 511, 18087-180 SorocabaNorges Forskningsråd: f261735/H30Universidade Estadual Paulista (Unesp)Norwegian University of Science & Technology (NTNU)Universidade Federal de Minas Gerais (UFMG)dos Santos Alonso, Augusto Matheus [UNESP]Brandao, Danilo IglesiasTedeschi, ElisabettaMarafão, Fernando Pinhabel [UNESP]2020-12-12T02:06:28Z2020-12-12T02:06:28Z2020-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.epsr.2020.106407Electric Power Systems Research, v. 186.0378-7796http://hdl.handle.net/11449/20043210.1016/j.epsr.2020.1064072-s2.0-85084955036Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengElectric Power Systems Researchinfo:eu-repo/semantics/openAccess2021-10-23T12:40:01Zoai:repositorio.unesp.br:11449/200432Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-23T11:38:49.845490Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks |
title |
Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks |
spellingShingle |
Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks dos Santos Alonso, Augusto Matheus [UNESP] Distributed inverters Harmonic compensation Power quality Power sharing Three-phase four-wire |
title_short |
Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks |
title_full |
Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks |
title_fullStr |
Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks |
title_full_unstemmed |
Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks |
title_sort |
Distributed selective harmonic mitigation and decoupled unbalance compensation by coordinated inverters in three-phase four-wire low-voltage networks |
author |
dos Santos Alonso, Augusto Matheus [UNESP] |
author_facet |
dos Santos Alonso, Augusto Matheus [UNESP] Brandao, Danilo Iglesias Tedeschi, Elisabetta Marafão, Fernando Pinhabel [UNESP] |
author_role |
author |
author2 |
Brandao, Danilo Iglesias Tedeschi, Elisabetta Marafão, Fernando Pinhabel [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Norwegian University of Science & Technology (NTNU) Universidade Federal de Minas Gerais (UFMG) |
dc.contributor.author.fl_str_mv |
dos Santos Alonso, Augusto Matheus [UNESP] Brandao, Danilo Iglesias Tedeschi, Elisabetta Marafão, Fernando Pinhabel [UNESP] |
dc.subject.por.fl_str_mv |
Distributed inverters Harmonic compensation Power quality Power sharing Three-phase four-wire |
topic |
Distributed inverters Harmonic compensation Power quality Power sharing Three-phase four-wire |
description |
Considering the high penetration of distributed generators in low-voltage grids, establishing a coordinated operation of their grid-tied inverters has become imperative to move towards the implementation of smart grids. Yet, knowing that mitigation of power quality issues such as reactive power, current unbalance and harmonics is of importance within such a context, this work proposes a master/slave control approach, which uses a communication means of low-bandwidth, to flexibly coordinate four-leg inverters dispersed in three-phase four-wire networks. Their coordination is attained by means of a current-based approach, allowing the sharing of active, reactive, harmonic and unbalance currents drawn by loads. The control strategy also regulates the power flow at the point of common coupling of the low-voltage network, while proportionally steering inverters according to their nominal capabilities. In addition to the offering of selective harmonic mitigation, the control approach provides distributed and decoupled unbalance compensation, in partial or total portion, based on concepts from the Conservative Power Theory. Consequently, extraction of sequence components or implementation of virtual impedance control loops are not required. The proposed strategy is evaluated based on multiple simulation results, considering the CIGRE's European low-voltage distribution benchmark, including six distributed inverters, as well as linear and nonlinear loads. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:06:28Z 2020-12-12T02:06:28Z 2020-09-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.epsr.2020.106407 Electric Power Systems Research, v. 186. 0378-7796 http://hdl.handle.net/11449/200432 10.1016/j.epsr.2020.106407 2-s2.0-85084955036 |
url |
http://dx.doi.org/10.1016/j.epsr.2020.106407 http://hdl.handle.net/11449/200432 |
identifier_str_mv |
Electric Power Systems Research, v. 186. 0378-7796 10.1016/j.epsr.2020.106407 2-s2.0-85084955036 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Electric Power Systems Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045858770419712 |